Health officials in Northern Ireland say there have been 923 new cases of the coronavirus recorded there in the last 24 hours.
There has also been one additional death in the region.
It brings to 17,110 the total number of cases in Northern Ireland, while the death toll stands at 587.
The Chief Medical Officer Dr Tony Holohan is due to speak with his Northern Ireland counterpart, Dr Michael McBride, later on Thursday.
Earlier, An Taoiseach Micheál Martin and the British Prime Minister Boris Johnson expressed concern about the growing number of cases in the North.
Mr Johnson also raised concerns about the impact of restrictions on the economy.
The two leaders agreed to monitor the situation and remain in touch.
It comes as the COVID-19 incidence rate in Donegal has passed 300 per 100,000 population.
Figures from the HPSC show the 14-day incidence rate in the county stands at 312.2 - the highest in the country.
Nine other counties currently have incidence rates of 100 or more: Cavan, Clare, Cork, Dublin, Limerick, Longford, Monaghan, Offaly and Roscommon.
Monaghan has the second highest incidence rate at 257.4 per 100,000, followed by Dublin (171.4) and Roscommon (170.4).
Meanwhile England is expected to be carved into three different lockdown tiers next week, with millions of people there facing tougher restrictions.
Pubs, restaurants and leisure facilities are expected to be closed, according to sources.
Under the proposals, people living in the strictest tier are also expected to be ordered not to have any social contact with anyone outside their household in any setting.
This goes a step beyond the current rules in some UK cities with high infection rates - such as Newcastle and Liverpool - where people can meet other households outdoors, but not in their garden or a pub garden.
The strictest tier will also come with a financial compensation package for businesses forced to shut.
Additional reporting: IRN
